py-srsly: Add Python 313

Author: essandess

python/py-srsly/Portfile

@@ -23,7 +23,7 @@ maintainers         {jonesc @cjones051073} openmaintainer
 description         Modern high-performance serialization utilities for Python
 long_description    {*}${description}
 
-python.versions     39 310 311 312
+python.versions     39 310 311 312 313
 
 if {${name} ne ${subport}} {
     # Not yet compatible with Cython 3